Browsing Journal Articles by Title

Now showing items 2649-2668 of 2743

    • An ultrasonic sensing system for assisting visually impaired person 

      Norkharziana, Mohd Nayan; Ruben, Latchmanan (Penerbit UTM Press, 2016)
      This paper presents a design and analysis of ultrasonic sensing system for visually impaired person. This system operation consisting of ultrasonic sensor and a microcontroller as the brain for the system. The experimental ...

    • Ultrasonic tomography - image reconstruction algorithms 

      Mohd Hafiz, Fazalul Rahiman, Dr; Ruzairi, Abdul Rahim, Prof. Dr.; Herlina, Abdul Rahim, Dr.; Siti Zarina, Mohd Muji; Elmy Johana, Mohamad, Dr (International Journal of Innovative Computing, Information and Control (IJICIC), 2012-01)
      This paper focuses on image reconstruction algorithms for use in ultrasonic tomography. There are three types of algorithms namely Linear Back Projection, Hybrid Reconstruction and Hybrid Binary Reconstruction that are of ...

    • Ultrasonic tomography imaging for liquid-gas flow measurement 

      Muhammad Jaysuman, Pusppanathan; Nor Muzakkir, Nor Ayob; Fazlul Rahman, Mohd Yunus; Khairul Hamimah, Abbas; Herlina, Abdul Rahim, Dr.; Loew,  Pei Ling, Dr.; Ruzairi, Abdul Rahim, Prof. Dr. ; Fatin Aliah, Phang Abdullah, Dr.; Mohd Hafiz, Fazalul Rahiman, Dr.; Zulkarnay, Zakaria (International Frequency Sensor Association (IFSA), 2013)
      This research was carried out to measure two-phase liquid - gas flow regime by using a dual functionality ultrasonic transducer. Comparing to the common separated transmitter-receiver ultrasonic pairs transducer, the dual ...

    • Ultrasonic tomography imaging simulation of two-phase homogeneous flow 

      Mohd Hafiz Fazalul, Rahiman; Zulkarnay, Zakaria; Ruzairi, Abdul Rahim; Wei, Nyap Ng (Emerald Group Publishing Limited, 2009-09)
      Purpose - The purpose of this paper is to present an implementation of ultrasonic tomography simulation to investigate the laminar flow of stratified liquid between water and oil. Design/methodology/approach - The velocity ...

    • Ultrawideband quadrature power divider employing double wireless via 

      Siti Zuraidah, Ibrahim; Marek Edward, Bialkowski; Abbosh, A. (Wiley Periodicals, Inc., 2012-02)
      The article reports the design of an ultrawideband quadrature power divider in uniplanar microstrip technology. The proposed device uses the conventional Wilkinson power divider with one of its output arms equipped with a ...

    • Uncertainty modeling in the prediction of effective mechanical properties using stochastic homogenization method with application to porous trabecular bone 

      Khairul Salleh, Basaruddin; Takano, Naoki; Akiyama, Hikaru; Nakano, Takayoshi (The Japan Institute of Metals and Materials, 2013)
      A systematic modeling of uncertainty due to image processing, material characteristics and experimental works was developed in order to propose a novel stochastic image-based multi-scale method for heterogeneous media. The ...

    • Under Bump Metallurgy (UBM)-a technology review for flip chip packaging 

      Mohd Khairuddin Md Arshad; Uda Hashim; Muzamir Isa (Department of Mechanical Engineering, University Malaya, 2007)
      Flip chip packaging technology has been utilized more than 40 years ago and it still experiencing an explosives growth. This growth is driven by the need for high performance, high volume, better reliability, smaller size ...

    • Understanding mental health in Malaysian elite sports: a qualitative approach 

      Foong, Philip Lew Chun; Kwan, Rebecca Wong Sook (Kementerian Pendidikan Tinggi (KPT), Malaysia, 2020-12)
      The attention in the society and rapid expansion of interest on the status and challenges of mental health among sporting athletes, especially in the elite sports setting, had increased exponentially. The present study was ...

    • Understanding the behaviour of pulsed laser dry and wet micromachining processes by multi-phase smoothed particle hydrodynamics (SPH) modelling 

      Noorhafiza, Muhammad, Dr.; Rogers, Benedict, Dr.; Li, Lin (IOP Publishing, 2013-03)
      A smoothed particle hydrodynamics (SPH) numerical model is developed to simulate the three-phase laser micro-machining process for medical coronary stent manufacture. The open-source code SPHysics is used to model the ...

    • Unified MPPT control strategy for Z-source inverter based photovoltaic power conversion systems 

      Sengodan, Thangaprakash (The Korean Institute of Power Electronics, 2012-01)
      Z-source inverters (ZSI) are used to realize both DC voltage boost and DC-AC inversion in single stage with a reduced number of power switching devices. A traditional MPPT control algorithm provides a shoot-through interval ...

    • Uninterruptible power supply monitoring system with Visual Basic 

      Sohiful Anuar, Zainol Murad; Mohd Nazrin, Md Isa; Norazeani, Abdul Rahman (Universiti Malaysia PerlisSchool of Microelectronic Engineering, 2006-12-29)
      In industrial process today, reliability of equipment is very important. Power supply must be able to cater the need of industrial process. In case of power failure, backup power supply system must be able to support the ...

    • Unique solution of an infinite 2-system model of first order ordinary differential equation 

      Muhammad Arif Syazani, Mohd Yazid; Gafurjan Ibragimov (Institute of Engineering Mathematics, Universiti Malaysia Perlis, 2023-04)
      This work is to solve an infinite 2-system model of first order ordinary differential equations. The system is in Hilbert space l2 with the coefficients are any positive real numbers. The system is rewritten as a system ...

    • University students’ awareness, risk perception and acceptance of the COVID-19 vaccine booster shots: A Multivariate Analysis of Variance (MANOVA) Approach 

      Nur Niswah Naslina, Azid @ Maarof; Nurul Huda, Mohd Zuhdi; Norsyafiqah Syafinas, Sulaiman; Nurhaziyah Athirah, Husmady (Institute of Engineering Mathematics, Universiti Malaysia Perlis, 2022-12)
      Coronavirus disease 2019 (COVID-19) is a serious global health threat of the 21st century. To curb the spread of the COVID-19 virus, the government has taken effective preventive measures, such as implementing the Movement ...

    • Unmanned aerial vehicle technology use in visual road inspection at Ft005, Johor Bahru-Melaka 

      Masiri, Kaamin; Saiful Azhar, Ahmad Tajudin; Nor Athirah, Basri; Rosdi, Ab Rahman; Ahmad Hakimi, Mat Nor; Muhammad Azraie, Abdul Kadir; Mardiha, Mokhtar; Luo, Pingping (Universiti Malaysia Perlis (UniMAP), 2022-03)
      Visual road inspection is one of the key phases of road maintenance to examine and describe the condition of road infrastructure. The local authority still uses the conventional road inspection method. However, this ...

    • Unsaturated polyester-kenaf composites: The effects of a modified montmorillonite filler on the tensile properties 

      R. H., Din; Luqman, Musa; A. A., Musa; Tay, G. -S. (Taylor & Francis Group, LLC., 2010-06)
      This study has been embarked to use the nanofiller to compensate the adverse effect of the lignocellulosic filler. Unsaturated polyester-kenaf composites filled with various types of MMT filler were produced. The study ...

    • Unsteady flow due to a contracting cylinder in a nanofluid using Buongiorno’s model 

      Wan Mohd Khairy Adly Wan Zaimi; Anuar, Ishak; Pop, Ioan (Elsevier, 2014-01)
      The unsteady flow and heat transfer of a nanofluid over a contracting cylinder is studied. Using a similarity transformation, the unsteady Navier–Stokes equations are transformed into a system of ordinary differential ...

    • Unsteady viscous flow and heat transfer due to a permeable stretching/shrinking cylinder 

      Wan Mohd Khairy Adly, Wan Zaimi; Anuar, Mohd Ishak, Prof. Dr.; Pop, Ioan Aurel (AIP Publishing LLC, 2013)
      An analysis is carried out to investigate the unsteady viscous flow and heat transfer due to a permeable stretching/shrinking cylinder. The unsteady Navier-Stokes equations are first transformed to nonlinear ordinary ...

    • Unsteady viscous flow over a shrinking cylinder 

      Wan Mohd Khairy Adly, Wan Zaimi; Anuar, Mohd Ishak, Prof. Dr.; Pop, Ioan Aurel (Elsevier, 2013-04)
      The unsteady viscous flow over a shrinking cylinder with mass transfer is studied. Using a similarity transformation, the unsteady Navier-Stokes equations are reduced to nonlinear ordinary differential equations. Numerical ...

    • UPFC device application on power system oscillations to improve the damping performance 

      Ali Nasser, Hussain; Mohd Fareq, Abd. Malek, Dr.; Mohd Abdur Rashid, Dr.; Latifah, Mohamed; Ismail, Daut, Prof. Dr. (Trans Tech Publications, 2013)
      UPFC is considered as an important modern device in the flexible ac transmission systems family that provides the controllability and flexibility for transmission lines. It is also capable of enhancing the stability of the ...

    • Uptake of Zn and Fe from wet market wastewater through phytoremediation: Potential of floating plants 

      Farah Naemah, Mohd Saad; Nurfaizah, Mustapha; Tengku Nuraiti, Tengku Izhar; Noor Ainee, Zainol; Nazerry Rosmady, Rahmat (Universiti Malaysia Perlis (UniMAP), 2019)
      In Malaysia, wet market wastewaters are discharged directly into receiving water without any treatment which may affect both of human and aquatic life if not treated properly. Thus, this study was conducted to assess the ...